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1.发明授权Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid 失效用于电化学分解盐溶液以形成相关碱和酸的装置和方法
公开(公告)号：US5595641A
公开(公告)日：1997-01-21
申请号：US157180
申请日：1993-12-08
申请人： Carlo Traini , Giuseppe Faita
发明人： Carlo Traini , Giuseppe Faita
IPC分类号： C25B1/34 , C25B1/16 , C25B1/22 , C25B1/26 , C25B1/46 , C25B9/00 , C25B9/04 , C25B9/06 , C25B9/08 , C25B9/10 , C25B11/02 , C25B11/03 , C25B13/02 , C25B15/08 , D01D5/06 , C25B1/00
摘要： Electrolyzer comprising at least one elementary cell divided into electrolyte compartments by cation-exchange membranes, said compartments are provided with a circuit for feeding electrolytic solutions and a circuit for withdrawing electrolysis products, said cell is equipped with a cathode and a hydrogen-depolarized anode assembly forming a hydrogen gas chamber fed with a hydrogen-containing gaseous stream, characterized in that said assembly comprises a cation-exchange membrane, a porous, flexible electrocatalytic sheet, a porous rigid current collector having a multiplicity of contact points with said electrocatalytic sheet, said membrane, sheet and current collector are held in contact together by means of pressure without bonding.
摘要翻译： PCT No.PCT / EP92 / 01442。 371日期1993年12月8日第 102（e）日期1993年12月8日PCT提交1992年6月26日PCT公布。 出版物WO93 / 00460 日期：1993年1月7日电解器包括至少一个通过阳离子交换膜分成电解质隔室的元件电池，所述隔室设置有用于供给电解溶液的电路和用于取出电解产物的回路，所述电池装备有阴极和 氢去极化阳极组件形成供给含氢气流的氢气室，其特征在于，所述组件包括阳离子交换膜，多孔柔性电催化板，具有多个接触点的多孔刚性集电器， 所述电催化片，所述膜，片和集电器通过压力而不粘合地保持在一起。
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2.发明授权Cell having a porous diaphragm for chlor-alkali electrolysis and process using the same 失效具有用于氯碱电解的多孔膜的电池和使用其的方法
公开(公告)号：US5534122A
公开(公告)日：1996-07-09
申请号：US412754
申请日：1995-03-29
申请人： Carlo Traini , Giovanni Meneghini
发明人： Carlo Traini , Giovanni Meneghini
摘要： A chlor-alkali diaphragm electrolysis cell comprising pairs of interleaved cathodes (C) and anodes (B), said cathodes having surfaces with openings and are provided with porous corrosion resistant diaphragms, said cell further comprising feed brine inlets and outlets (H, I, L) for the removal of produced chlorine, hydrogen and caustic, said anodes (B) are expanded by internal extenders (F) and have electrode surfaces with openings for releasing produced gaseous chlorine, characterized in that each of said expanded anodes (B) comprises a plurality of pressing means (O,Q) made of corrosion resistant material having elastic properties to maintain the electrode surfaces of the anodes against the diaphragm and said pressing means are longitudinally positioned inside the anodes having very low operating voltages.
摘要翻译： 一种含有交错阴极（C）和阳极（B）的氯碱隔膜电解槽，所述阴极具有开口的表面并且设置有多孔耐腐蚀隔膜，所述电池还包括进料盐水入口和出口（H，I， 所述阳极（B）通过内部补充剂（F）膨胀并且具有用于释放产生的气态氯的开口的电极表面，其特征在于，每个所述膨胀的阳极（B）包括 由具有弹性的耐腐蚀材料制成的多个按压装置（O，Q），以将阳极的电极表面保持在隔膜和所述按压装置上，纵向位于具有非常低的工作电压的阳极的内部。
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3.发明授权Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexes 失效含有氟化物或氟代阴离子络合物的电解酸溶液的金属阳极
公开(公告)号：US5344530A
公开(公告)日：1994-09-06
申请号：US55210
申请日：1993-04-29
申请人： Oronzio de Nora , Antonio Nidola , Carlo Traini , Ulderico Nevosi
发明人： Oronzio de Nora , Antonio Nidola , Carlo Traini , Ulderico Nevosi
摘要： The present invention relates to metal anodes for oxygen evolution from solutions containing fluorides or artionic fluorocomplexes such as tetrafluoroborates and hexafluorosilicates, the anodes having a metal substrate or matrix selected in the group comprising nickel-copper alloys with a copper content in the range of 2.5 and 30% by weight, tungsten or tantalum, niobium or titanium, combinations thereof or alloys of the same with palladium, nickel or yttrium. The anodes further comprise electrocatalytic compounds for oxygen evolution dispersed in the metal matrix. In the case of nickel- copper alloys, useful electrocatalytic compounds are cerium or tin dioxides, with suitable additives, while for tungsten, cobalt added with nickel, iron, copper or palladium may be used. The same electrocatalytic compounds may be advantageously applied to said metal substrate or matrix in the form of a coating using the conventional technique of thermal decomposition of paints containing suitable precursors or by thermal deposition such as plasma-spray.
摘要翻译： 本发明涉及从含有氟化物或挥发性氟化合物如四氟硼酸盐和六氟硅酸盐的溶液中产生的用于产生氧的金属阳极，所述阳极具有选自铜含量在2.5的镍 - 铜合金中的金属基体或基体， 30重量％的钨或钽，铌或钛，它们的组合或其与钯，镍或钇的合金。 阳极还包含用于分散在金属基质中的析氧的电催化化合物。 在镍铜合金的情况下，有用的电催化化合物是铈或锡二氧化物，具有合适的添加剂，而对于钨，可以使用添加有镍，铁，铜或钯的钴。 使用常规的含有合适前体的涂料的热分解技术或通过热沉积如等离子体喷涂，可以将相同的电催化化合物有利地以涂层形式施加到所述金属基材或基质上。
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公开(公告)号：US4828653A
公开(公告)日：1989-05-09
申请号：US133548
申请日：1987-12-16
申请人： Carlo Traini , Tomaso Leone , Renato Schira
发明人： Carlo Traini , Tomaso Leone , Renato Schira
CPC分类号： C25D17/12
摘要： A dimensionally stable anode for high-speed galvanizing processes comprising a plurality of substantially parallel, foraminous layers, in electrical contact with each other, each layer comprising an inert, electroconductive substrate with an oxygen evolving electrocatalytic coating, characterized in that the current density of each individual layer is substantially the same and does not exceed the value corresponding to the minimum desired lifetime of the anode. The number of layers is sufficient to provide the total current density required for the high-speed galvanizing. The anode further comprises spacers suitable for preventing short-circuits.
摘要翻译： 用于高速镀锌工艺的尺寸稳定的阳极由至少两个电极层构成。 电流密度对于每个单层基本上相同，并且不超过对应于阳极的最小期望寿命的值。 提供适当数量的电极层，以便在与高速电镀锌所需的相同值范围内获得阳极处的总电流密度。 阳极还包括用于防止短路的适当装置。
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公开(公告)号：US5779876A
公开(公告)日：1998-07-14
申请号：US820225
申请日：1997-03-18
申请人： Carlo Traini , Tomaso Leone
发明人： Carlo Traini , Tomaso Leone
摘要： The present invention relates to an improved electrolyzer for the production of sodium hydrochlorite and chlorate, equipped with interleaved plates acting as anodes and cathodes, wherein at least the anode plates are provided with foraminous sheets having an electrocatalytic coating and a planar profile, said sheets being applied to the anode plates by means of a multiplicity of connection points. The invention further discloses a reactivation method for electrolyzers fabricated according to the prior art teachings.
摘要翻译： 本发明涉及一种用于生产氢氯酸钠和氯酸钠的改进的电解槽，其装有作为阳极和阴极的交错板，其中至少阳极板设置有具有电催化涂层和平面轮廓的多孔片，所述片是 通过多个连接点施加到阳极板。 本发明还公开了根据现有技术制造的电解器的再活化方法。
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公开(公告)号：US5464507A
公开(公告)日：1995-11-07
申请号：US296090
申请日：1994-08-25
申请人： Oronzio de Nora , Antonio Nidola , Ulderico Nevosi , Carlo Traini
发明人： Oronzio de Nora , Antonio Nidola , Ulderico Nevosi , Carlo Traini
摘要： A process for the electrolytic recovery of metals from solutions containing metal ions and fluorides and/or anionic flurocomplexes in diaphragmless cells wherein the deposition of the metals at the cathodes and the oxygen evolution at the anodes is effected, the improvement comprising the use of insoluble anodes made of sintered powders of doped tin dioxide optionally provided with coating of zirconyl phosphate and metal oxides which prevents the deposition of metal oxides on the anode surface and catalyze the oxygen evolution reaction.
摘要翻译： 一种用于在无隔膜电池中从含有金属离子和氟化物和/或阴离子氟络合物的溶液中回收金属的方法，其中阴极沉积金属和在阳极处析出氧，其改进包括使用不溶性阳极 由掺杂的二氧化锡的烧结粉末制成，其任选地具有磷酸氧锆和金属氧化物的涂层，其防止金属氧化物沉积在阳极表面上并催化析氧反应。
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7.发明授权Method for detecting defective ion exchange membranes in monopolar and bipolar electrolyzers 失效在单极和双极电解槽中检测有缺陷的离子交换膜的方法
公开(公告)号：US5015345A
公开(公告)日：1991-05-14
申请号：US391559
申请日：1989-07-24
申请人： Carlo Traini , Corrado Mojana , Carlo Gusmini
发明人： Carlo Traini , Corrado Mojana , Carlo Gusmini
IPC分类号： C25B15/00
CPC分类号： C25B15/00
摘要： The present invention discloses a method for identifying defective ion exchange membranes installed in monopolar and/or bipolar electrolyzers for chlor-alkali production. The method of the present invention comprises reducing the electric load of the electrolyzer down to 2 to 10% of the normal load and under these reduced load conditions, a measurement of the single electric current load absorbed by each elementary cell in a monopolar electrolyzer is effected as well as the measurement of the single electric voltage of the elementary cell in the case of bipolar electrolyzers. The method further comprises calculating the deviations of the single current or voltages with respect to average values. All membranes which present values comprised between a determined threshold value are considered as suitable for operation.
摘要翻译： PCT No.PCT / EP88 / 01170 Sec。 371日期：1989年7月24日 102（e）日期1989年7月24日PCT提交1988年12月16日PCT公布。 WO89 / 05873 PCT出版物 日本1989年6月29日。本发明公开了一种用于鉴定安装在用于氯碱生产的单极和/或双极电解器中的有缺陷的离子交换膜的方法。 本发明的方法包括将电解槽的电负载降低到正常负载的2至10％，并且在这些减小的负载条件下，对单极电解槽中的每个单元电池吸收的单个电流负载进行测量 以及在双极电解槽的情况下单元电池单电压的测量。 该方法还包括计算单个电流或电压相对于平均值的偏差。 所有出现在确定的阈值之间的值的膜被认为适合于操作。
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公开(公告)号：US5958211A
公开(公告)日：1999-09-28
申请号：US58753
申请日：1998-04-10
申请人： Carlo Traini , Tomaso Leone
发明人： Carlo Traini , Tomaso Leone
CPC分类号： C25B11/03 , C25B9/063 , Y10T29/49721 , Y10T29/4973
摘要： A reactivation method for an electrolyzer for the production of sodium hydrochlorite and chlorate, equipped with interleaved plates acting as anodes and cathodes, wherein at least the anode plates are provided with foraminous sheets having an electrocatalytic coating and a planar profile, said sheets being applied to the anode plates by means of a multiplicity of connection points.
摘要翻译： 一种用于生产氢氯酸钠和氯酸钠的电解器的再活化方法，其配备有用作阳极和阴极的交错板，其中至少阳极板设置有具有电催化涂层和平面轮廓的多孔板，所述片应用于 阳极板通过多个连接点。
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公开(公告)号：US5401367A
公开(公告)日：1995-03-28
申请号：US189108
申请日：1994-01-31
申请人： Carlo Traini , Giovanni Meneghini
发明人： Carlo Traini , Giovanni Meneghini
摘要： In a process of chlor-alkali electrolysis carried out in a diaphragm cells comprising pairs of interleaved anodes and cathodes, the cathodes being provided with openings and coated with a porous diaphragm resistant to corrosion, at least part of the said anodes being provided with hydrodynamic circular to produce circulation of the anodic brine, the cell having inlets for feeding the fresh brine, and outlets for the removal of produced chlorine, hydrogen and caustic, the improvement comprising controlling the oxygen content in the chlorine and chlorate concentration in the caustic independently from the the fresh brine introduced and the concentration of the the brine by adding an aqueous solution of hydrochloric acid to the brine in the anodic compartment of the cell through a distributor positioned over the hydrodynamic circulator.
摘要翻译： 在包括交替阳极和阴极对的隔膜室中进行氯碱电解的过程中，阴极设置有开口并涂覆有抗腐蚀的多孔隔膜，至少部分所述阳极设置有流体动力学圆形 为了产生阳极盐水的循环，具有用于进料新鲜盐水的入口的单元和用于除去产生的氯，氢和苛性碱的出口，改进包括控制氯中的氧含量和苛性碱中的氯酸盐浓度，独立于 通过将位于水力循环器上的分配器向细胞的阳极室中的盐水中加入盐酸水溶液，引入新鲜的盐水和盐水的浓度。
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公开(公告)号：US5242564A
公开(公告)日：1993-09-07
申请号：US850413
申请日：1992-03-12
申请人： Carlo Traini
发明人： Carlo Traini
IPC分类号： C25B15/08
CPC分类号： C25B15/08
摘要： The present invention relates to a device for removing gas-liquid mixtures from electrolysis cells divided into compartments, particularly membrane type cells, without producing pressure fluctuations, wherein each compartment of said cells is characterized in that it is provided with two different ducts for removing the mixture after separation into liquid-rich and gas-rich phases, each duct being connected with its first end to the upper part of the cell, while the other end of the gas-rich phase duct (4) is inserted into the liquid-rich phase duct (3) so that liquid is present only in the portion of the duct comprised between the connection to the cell and the point of inlet of the gas-rich phase. In the subsequent portion the flow consists in the gas-liquid mixture which is forwarded to a gas-disengaging vessel. As said second end of the gas-rich phase duct (4) is inserted into the liquid-rich phase duct (3), sufficient pressure is maintained in the upper gas-separating area of the cell to prevent the liquid-rich phase from entering the gas-rich phase duct (4).
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